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The men's swimming wetsuit O'Neill Hyperfreak Fire 4/3+ mm Back Zip Full is suitable for cooler water. Flexible TechnoButter neoprene supports freedom of movement, while the Back Zip closure at the back makes it easier to put on and stabilises the fit.

Basic data

Brand O'Neill
Country of origin of the brand USA
Sport Surfing
Gender Male
Season Year-round
Leading colour Black
Model/product code Hyperfreak Fire 4/3+ Back Zip Full 5676-A00
Code 2000223217

Product details

Sleeve length Long
Leg length Long
Fastening type Back-Zip
Foam thickness 4/3 mm
Main foam thickness 3 mm
Material Neoprene
Technologies TechnoButter 4X, TechnoButter 4, Exterior Fluid Seam Weld, Redzone Water Resistant Zipper, TechnoButter 4 Firewall, Z.E.N. Zip

Warnings and producer's data

Producer O'Neill Europe B.V. | Oosteinde 32, 2361 HE Warmond, Holandia | info@oneill.com

Men's swimming wetsuit O'Neill Hyperfreak Fire 4/3+ mm Back Zip Full black/black (5676-A00)

Men's O'Neill Hyperfreak Fire 4/3+ mm Back Zip Full black/black wetsuit is a unique product designed for demanding water sports enthusiasts. Made from high-quality neoprene, it provides optimal thermal insulation with a thickness of 4/3 mm. The long sleeves and legs ensure full protection when swimming in cooler conditions, while the material used offers flexibility and comfort.

Advanced TechnoButter 4 and TechnoButter 4X technologies

The men's O'Neill Hyperfreak Fire 4/3+ mm Back Zip Full black/black wetsuit utilises the latest TechnoButter 4 and TechnoButter 4X technologies. TechnoButter 4 is a next-generation material that offers incredible softness and flexibility, enhancing wearing comfort. Meanwhile, TechnoButter 4X provides additional lightness and quick drying, making this wetsuit an ideal choice for professionals and amateurs seeking the best technological solutions.

Convenient Back-Zip closure

The men's O'Neill Hyperfreak Fire 4/3+ mm Back Zip Full black/black wetsuit features a practical Back-Zip closure. This solution allows for easy putting on and taking off of the wetsuit, which is especially important during intense training sessions or competitions. The rear zip also increases the seal, minimising water ingress into the wetsuit, which significantly enhances the user's thermal comfort.

Eco-friendly production approach

One of the key aspects of the men's O'Neill Hyperfreak Fire 4/3+ mm Back Zip Full black/black wetsuit is its eco-friendly nature. The use of recycled materials demonstrates O'Neill's commitment to environmental protection. This approach to production not only reduces waste but also promotes sustainable development within the sportswear industry.

Men's O'Neill Hyperfreak Fire 4/3+ mm Back Zip Full wetsuit – features:

  • Made from neoprene providing flexibility and comfort;
  • 4/3 mm thickness ensuring optimal thermal insulation;
  • TechnoButter 4 technology offering softness and flexibility;
  • TechnoButter 4X technology providing lightness and quick drying;
  • Long sleeves and legs for full thermal protection;
  • Practical Back-Zip closure for easy donning;
  • Use of recycled materials promoting environmental protection.
TechnoButter 4X
The next iteration of the revolutionary TechnoButter 3X technology from the O'Neil brand. The neoprene foams use recycled graphene fibres to further enhance the foams durability, stretchability and thermal insulation properties.
TechnoButter 4
Technobutter 4 is an exceptionally flexible and lightweight foam that provides freedom of movement and high thermal comfort. Thanks to its Graphene fibre structure with heat-conducting properties, the material effectively maintains body temperature. In addition, it is quick-drying and highly resistant to wear and tear.
Exterior Fluid Seam Weld
A flexible waterproofing layer protects the outer part of the seams against water penetration. At the same time, it reinforces the seams without making them excessively stiff. It improves durability, waterproofing and freedom of movement.
Redzone Water Resistant Zipper
The waterproof zip provides an extra barrier to prevent water from getting inside. Its design ensures easy access without compromising on waterproofing. It helps retain heat for longer and maintains a secure fit whilst on the move.
TechnoButter 4 Firewall
A soft thermal layer containing graphene fibres helps to trap and redirect heat back towards the body. The thicker construction is more effective at preventing the body from getting cold in cold conditions. At the same time, it retains its flexibility, lightness and comfort during movement.
Z.E.N. Zip
The rear-mounted fastening system features an additional barrier to prevent water from entering. The design makes it easy to put on and ensures a comfortable fit. It also helps to minimise heat loss and enhance comfort whilst on the move.
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Men's swimming wetsuit O'Neill Hyperfreak Fire 4/3+ mm Back Zip Full black/black

Men's swimming wetsuit O'Neill Hyperfreak Fire 4/3+ mm Back Zip Full black/black

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Men's swimming wetsuit O'Neill Hyperfreak Fire 4/3+ mm Back Zip Full black/black

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Sizes table
    Size 2XS XS SS S ST MS M MT LS L LT XLS XL XLT 2XL 3XL 4XL
    Waist size (cm) 70-72 72-75 75-79 75-79 75-79 79-84 79-84 79-84 79-84 84-89 84-89 89-94 89-94 89-94 94-99 99-112 112-122
    Weight (kg) 52-59 57-64 59-68 61-70 66-75 66-75 70-77 73-82 73-82 77-86 82-91 82-91 86-95 91-100 95-104 104-113 113-122
    Chest girth (cm) 90-93 93-95 95-99 95-99 95-99 88-104 99-104 99-104 104-110 104-110 104-110 110-117 110-117 110-117 117-123 123-130 130-136
    Height (cm) 168-173 170-175 166-171 173-178 183-188 169-174 175-180 185-191 171-177 178-183 188-193 174-179 180-185 191-196 183-188 183-191 185-193
    €439.99
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